Philip thomas balls



(NoModeL) P. T. BALLS. KNIFE ATTACHMENT FOR LINOTYPE MACHINES. No.573,383.

Patented Dec. 15, 1896.

I a firm/enter wztnesses 51% m attorneys.

noTo-umm. wasumoniu o c UNITED STATES PATENT ()FFIC PHILIP THOMAS BALLS,OF MELBOURNE, VICTORIA.

KNIFE ATTACHMENT FOR LlNOTYPE-MACHINES.

SPECIFICATION forming part of Letters Patent No. 573,383, dated December15, 1896. Application filed July 9, 1896. Serial No. 598,575. [Nomodel.)

To all whom it may concern:

Be it known that I, PHILIP THOMAS BALLS, linotype expert, a subject ofthe Queen of the United Kingdom of Great Britain and Ireland,

and a resident of 197 Collins Street, Melbourne, in the colony ofVictoria, Australia, have invented certain new and useful Improvem cutsin Two-Line-Letter Knife Attachments for Linotype-Machines, of which thefollowing is a specification.

My invention relates to improvements in knife attachments forlinotype-machines, and has for its object to provide a single-knifeattachment which is adjustable so as to be used for trimming linotypeslugs or bars having two-line initial letters.

My invention consists of the novel features hereinafter described andclaimed.

Reference is had to the accompanying drawin gs, wherein the same partsare indicated by the same letters throughout the several views.

. Figure 1 shows part of a knife attachment provided with my invention,with the knives in side elevation in closed position. Fig. 2 shows aplan view looking down upon the knife-edges, with the knife closed infirm lines and extended in dotted lines, showing also two positions ofthe lever which operates the knife. Fig. 3 is a perspective view showingthe parts in Fig. 2 in reverse position. Fig. 4 is a sectional elevationon the line 6 6 in Fig. 2. Fig. 5 is a perspective view of the slidingportion of the knife, showing the under side. I

A is a straight knife, as shown by firm lines in Fig. 1. The knife shownwill plane ordinary linotype-slugs along'their whole length, while asextended or divided, as clearly shown in Fig. 3, the said knife willallow one or more two-line letters to pass through, so that in everycase the slug is planed perfectly.

In the drawings, A is the stationary part of my knife, and B theadjustable part, each part carrying a single cutting edge A and B,respectively.

The knife-edge A on A is so placed as not to trim the initial end oflines, and thus corresponds with the knife-edge on the lower part of theordinary two-line-letter knife attachments.

O is a fixed holding-down plate fitting in a groove D in part B andscrewed or otherwise secured to the base, (which is in practice usuallyintegral with the body part of A,) the screws or fastenings passingthrough slots E in B, which cannot move except longitudinally.

F is a lever the handle of which is accessible to the operator of themachine, said lever being pivoted at G and having a broad portionprovided with a series of holes or recesses H, either one of which mayengage a catch or projection I on a spring-plate J, so as to hold thelever F (and consequently the part B with the edge B, to which it isattached) firmly in one or other of the positions predetermined by theoperator. The springplate is fixed immovably at one end to the frame orattachment, as by a screw K. The pin L, projecting from the back side ofpart B, falls within the slot M in the head of the lever F, a channel Nbeing made in the back of the parts A B or in the attachment to leaveroom for the lever to act.

To guide the part B in its longitudinal movement, it is provided with aribbed base 0, which fits into the groove P in the fixed part A. Thenthe blade B abuts against blade A, then the blade B will trim theinitial ends of the ordinary linotype-s1ugs which pass through.

The lines Q and R in Figs. 1 and 2 show the extended and closedpositions, respectively, of the edge of the adjustable part B, and thespace and depression between the blades when extended is to allow thetwo-line letter or letters on the slug to pass through.

S represents the usual auxiliary knife for trimming the two-lineletters, and T represents atwo-line knife-liner, such as is used in theordinary two-line-letter attachment. These are well known in the art,and hence will not be further described.

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States, is

1. In a trimming attachment for linotypemachines, the combination with astationary part having a fixed knife-edge extending a portion of itslength only, and being cut away for another portion of its length; of alongitudinally-movable blade mounted in said cutaway portion and havinga knife-edge in line with said fixed knife-edge; and means for slidingsaid movable blade longitudinally, substantially as described.

2. I11 a trimming attachment for linotypemachines, the combination witha stationary part having a fixed knife-edge extending a portion of itslength only, and being cut away for another portion of its length; of alongitudinally-movable blade mounted'in said cutaway portion and havinga knife-edge in line with said fixed knife-edge means for sliding saidmovable blade longitudinally, and means for clamping said movable bladein a predetermined position, substantially as described.

3. In a trimming attachment for linotypemachines, the combination with astationary part having a fixed knife-edge extending a portion of itslength only, and being cut away for another portion of its length; of aslotted movable blade mounted in said cut-away portion, a holding-plateresting upon said movable blade, and screws passing through saidholding-plate and the slots in said blade, and holding the same inposition and permitting of a longitudinal movement thereof only; andmeans for sliding said movable blade longitudinally, substantially asdescribed.

4. In a .tri-mming attachment for linotypemachines, the combination witha stationary part having a fixed knife-edge extending a portion of itslength only, and being cut away for another portion of its length; of aslotted movable blade mounted in said cut-away por tion, a holding-plateresting upon said movable blade, and screws passing through saidholding-plate and the slots in said blade, and holding the same inposition and permitting of a longitudinal movement thereof only; arearwardly-projecting stud on said movable blade; and a pivoted leverengaging said stud and adapted to move said blade longitudinally,substantially as described.

5. In a trimming attachment for linotypemachines, the combination with astationary part having a fixed knifeedge extending a portion of itslength only, and being cut away for another portion of its length; of aslotted movable blade mounted in said out away portion, a holding-plateresting upon said movable blade, and screws passing through saidholding-plate and the slots in said blade, and holding the same inposition and permitting of a longitudinal movement thereof only; arearwardly-proj ectin g stud on said movable blade; a pivoted leverengaging said stud and adapted to move said blade longitudinally, andmeans for clamping said lever in a predetermined position,substant-iall-y as described.

6. In a trimming attachment for linotypemachines, the combination with astationary part having a fixed knife-edge extending a portion of itslength only, and being cut away for another portion of its length, andhaving a longitudinal recess in said cut-away portion; of a movableblade mounted in said cutaway portion, and provided with a longitudinalrib adapted to fit in said longitudinal recess and allow said movableblade to slide into or out of contact with the end of said fixed blade,means for holding said movable blade in said recess, means for slidingsaid movable blade, and means for clamping the same in a predeterminedposition, substantially as described.

7. In a trimming attachment for linotypemachines, the combination with astationary part having a fixed knife-edge extending a portion of itslength only, and being cutaway for another portion of its length, andhaving a longitudinal recess in said cut-away portion; of alongitudinally slotted movable blade mounted in said cut-away portion,and provided with a longitudinal rib adapted to fit in said longitudinalrecess and allow said movable blade to slide into or out of contact withthe end of said fixed blade, a holdingplate resting upon said movableblade, screws passing through said holding plate and through the slotsin said blade, and holding said movable blade in said recess, means forsliding said movable blade, and means for clamping the same in apredetermined. position, substantially as described.

8. In a trimming attachment for linotypemachines, the combination with astationary part having a fixed knife-edge extending a portion of itslength only, and being cut away for another portion of its length, andhaving a longitudinal recess in said cut-away portion of alongitudinally slotted movable blade mounted in. said cut-away portion,and provided with a longitudinal rib adapted to fit in said longitudinalrecess and allow said movable blade to slide into or out of contact withthe end of said fixed blade, a holdingplate resting upon said movableblade, screws passing through said holding plate and through the slotsin said blade, and holding said movable blade in said recess, a stud onthe rear side of said movable blade; a pivoted lever en gagin gsaidstud, and adapted to slide said movable blade; and a spring-catchadapted to hold said lever in a predetermined position, substantially asdescribed.

In witness whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

PHILIP THOMAS BALLS.

lVitnesses:

GEORGE G. TURRI, E. F. NIcHoLLs.

ICC

